Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 412 insertions, 0 deletions

diff --git a/fs/cifs/smbdes.c b/fs/cifs/smbdes.c
new file mode 100644
index 000000000000..efaa044523a7
--- /dev/null
+++ b/fs/cifs/smbdes.c
@@ -0,0 +1,412 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+
+   a partial implementation of DES designed for use in the 
+   SMB authentication protocol
+
+   Copyright (C) Andrew Tridgell 1998
+   Modified by Steve French (sfrench@us.ibm.com) 2002,2004
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/* NOTES: 
+
+   This code makes no attempt to be fast! In fact, it is a very
+   slow implementation 
+
+   This code is NOT a complete DES implementation. It implements only
+   the minimum necessary for SMB authentication, as used by all SMB
+   products (including every copy of Microsoft Windows95 ever sold)
+
+   In particular, it can only do a unchained forward DES pass. This
+   means it is not possible to use this code for encryption/decryption
+   of data, instead it is only useful as a "hash" algorithm.
+
+   There is no entry point into this code that allows normal DES operation.
+
+   I believe this means that this code does not come under ITAR
+   regulations but this is NOT a legal opinion. If you are concerned
+   about the applicability of ITAR regulations to this code then you
+   should confirm it for yourself (and maybe let me know if you come
+   up with a different answer to the one above)
+*/
+#include <linux/slab.h>
+#include "cifsencrypt.h"
+#define uchar unsigned char
+
+static uchar perm1[56] = { 57, 49, 41, 33, 25, 17, 9,
+	1, 58, 50, 42, 34, 26, 18,
+	10, 2, 59, 51, 43, 35, 27,
+	19, 11, 3, 60, 52, 44, 36,
+	63, 55, 47, 39, 31, 23, 15,
+	7, 62, 54, 46, 38, 30, 22,
+	14, 6, 61, 53, 45, 37, 29,
+	21, 13, 5, 28, 20, 12, 4
+};
+
+static uchar perm2[48] = { 14, 17, 11, 24, 1, 5,
+	3, 28, 15, 6, 21, 10,
+	23, 19, 12, 4, 26, 8,
+	16, 7, 27, 20, 13, 2,
+	41, 52, 31, 37, 47, 55,
+	30, 40, 51, 45, 33, 48,
+	44, 49, 39, 56, 34, 53,
+	46, 42, 50, 36, 29, 32
+};
+
+static uchar perm3[64] = { 58, 50, 42, 34, 26, 18, 10, 2,
+	60, 52, 44, 36, 28, 20, 12, 4,
+	62, 54, 46, 38, 30, 22, 14, 6,
+	64, 56, 48, 40, 32, 24, 16, 8,
+	57, 49, 41, 33, 25, 17, 9, 1,
+	59, 51, 43, 35, 27, 19, 11, 3,
+	61, 53, 45, 37, 29, 21, 13, 5,
+	63, 55, 47, 39, 31, 23, 15, 7
+};
+
+static uchar perm4[48] = { 32, 1, 2, 3, 4, 5,
+	4, 5, 6, 7, 8, 9,
+	8, 9, 10, 11, 12, 13,
+	12, 13, 14, 15, 16, 17,
+	16, 17, 18, 19, 20, 21,
+	20, 21, 22, 23, 24, 25,
+	24, 25, 26, 27, 28, 29,
+	28, 29, 30, 31, 32, 1
+};
+
+static uchar perm5[32] = { 16, 7, 20, 21,
+	29, 12, 28, 17,
+	1, 15, 23, 26,
+	5, 18, 31, 10,
+	2, 8, 24, 14,
+	32, 27, 3, 9,
+	19, 13, 30, 6,
+	22, 11, 4, 25
+};
+
+static uchar perm6[64] = { 40, 8, 48, 16, 56, 24, 64, 32,
+	39, 7, 47, 15, 55, 23, 63, 31,
+	38, 6, 46, 14, 54, 22, 62, 30,
+	37, 5, 45, 13, 53, 21, 61, 29,
+	36, 4, 44, 12, 52, 20, 60, 28,
+	35, 3, 43, 11, 51, 19, 59, 27,
+	34, 2, 42, 10, 50, 18, 58, 26,
+	33, 1, 41, 9, 49, 17, 57, 25
+};
+
+static uchar sc[16] = { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
+
+static uchar sbox[8][4][16] = {
+	{{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7},
+	 {0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8},
+	 {4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0},
+	 {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}},
+
+	{{15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10},
+	 {3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5},
+	 {0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15},
+	 {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}},
+
+	{{10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8},
+	 {13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1},
+	 {13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7},
+	 {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}},
+
+	{{7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15},
+	 {13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9},
+	 {10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4},
+	 {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}},
+
+	{{2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9},
+	 {14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6},
+	 {4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14},
+	 {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}},
+
+	{{12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11},
+	 {10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8},
+	 {9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6},
+	 {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}},
+
+	{{4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1},
+	 {13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6},
+	 {1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2},
+	 {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}},
+
+	{{13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7},
+	 {1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2},
+	 {7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8},
+	 {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}}
+};
+
+static void
+permute(char *out, char *in, uchar * p, int n)
+{
+	int i;
+	for (i = 0; i < n; i++)
+		out[i] = in[p[i] - 1];
+}
+
+static void
+lshift(char *d, int count, int n)
+{
+	char out[64];
+	int i;
+	for (i = 0; i < n; i++)
+		out[i] = d[(i + count) % n];
+	for (i = 0; i < n; i++)
+		d[i] = out[i];
+}
+
+static void
+concat(char *out, char *in1, char *in2, int l1, int l2)
+{
+	while (l1--)
+		*out++ = *in1++;
+	while (l2--)
+		*out++ = *in2++;
+}
+
+static void
+xor(char *out, char *in1, char *in2, int n)
+{
+	int i;
+	for (i = 0; i < n; i++)
+		out[i] = in1[i] ^ in2[i];
+}
+
+static void
+dohash(char *out, char *in, char *key, int forw)
+{
+	int i, j, k;
+	char *pk1;
+	char c[28];
+	char d[28];
+	char *cd;
+	char ki[16][48];
+	char *pd1;
+	char l[32], r[32];
+	char *rl;
+
+	/* Have to reduce stack usage */
+	pk1 = kmalloc(56+56+64+64,GFP_KERNEL);
+	if(pk1 == NULL)
+		return;
+
+	cd = pk1 + 56;
+	pd1= cd  + 56;
+	rl = pd1 + 64;
+
+	permute(pk1, key, perm1, 56);
+
+	for (i = 0; i < 28; i++)
+		c[i] = pk1[i];
+	for (i = 0; i < 28; i++)
+		d[i] = pk1[i + 28];
+
+	for (i = 0; i < 16; i++) {
+		lshift(c, sc[i], 28);
+		lshift(d, sc[i], 28);
+
+		concat(cd, c, d, 28, 28);
+		permute(ki[i], cd, perm2, 48);
+	}
+
+	permute(pd1, in, perm3, 64);
+
+	for (j = 0; j < 32; j++) {
+		l[j] = pd1[j];
+		r[j] = pd1[j + 32];
+	}
+
+	for (i = 0; i < 16; i++) {
+		char *er;  /* er[48]  */
+		char *erk; /* erk[48] */
+		char b[8][6];
+		char *cb;  /* cb[32]  */
+		char *pcb; /* pcb[32] */
+		char *r2;  /* r2[32]  */
+
+		er = kmalloc(48+48+32+32+32, GFP_KERNEL);
+		if(er == NULL) {
+			kfree(pk1);
+			return;
+		}
+		erk = er+48;
+		cb  = erk+48;
+		pcb = cb+32;
+		r2  = pcb+32;
+
+		permute(er, r, perm4, 48);
+
+		xor(erk, er, ki[forw ? i : 15 - i], 48);
+
+		for (j = 0; j < 8; j++)
+			for (k = 0; k < 6; k++)
+				b[j][k] = erk[j * 6 + k];
+
+		for (j = 0; j < 8; j++) {
+			int m, n;
+			m = (b[j][0] << 1) | b[j][5];
+
+			n = (b[j][1] << 3) | (b[j][2] << 2) | (b[j][3] <<
+							       1) | b[j][4];
+
+			for (k = 0; k < 4; k++)
+				b[j][k] =
+				    (sbox[j][m][n] & (1 << (3 - k))) ? 1 : 0;
+		}
+
+		for (j = 0; j < 8; j++)
+			for (k = 0; k < 4; k++)
+				cb[j * 4 + k] = b[j][k];
+		permute(pcb, cb, perm5, 32);
+
+		xor(r2, l, pcb, 32);
+
+		for (j = 0; j < 32; j++)
+			l[j] = r[j];
+
+		for (j = 0; j < 32; j++)
+			r[j] = r2[j];
+
+		kfree(er);
+	}
+
+	concat(rl, r, l, 32, 32);
+
+	permute(out, rl, perm6, 64);
+	kfree(pk1);
+}
+
+static void
+str_to_key(unsigned char *str, unsigned char *key)
+{
+	int i;
+
+	key[0] = str[0] >> 1;
+	key[1] = ((str[0] & 0x01) << 6) | (str[1] >> 2);
+	key[2] = ((str[1] & 0x03) << 5) | (str[2] >> 3);
+	key[3] = ((str[2] & 0x07) << 4) | (str[3] >> 4);
+	key[4] = ((str[3] & 0x0F) << 3) | (str[4] >> 5);
+	key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6);
+	key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7);
+	key[7] = str[6] & 0x7F;
+	for (i = 0; i < 8; i++) {
+		key[i] = (key[i] << 1);
+	}
+}
+
+static void
+smbhash(unsigned char *out, unsigned char *in, unsigned char *key, int forw)
+{
+	int i;
+	char *outb; /* outb[64] */
+	char *inb;  /* inb[64]  */
+	char *keyb; /* keyb[64] */
+	unsigned char key2[8];
+
+	outb = kmalloc(64 * 3,GFP_KERNEL);
+	if(outb == NULL)
+		return;
+
+	inb  = outb + 64;
+	keyb = inb +  64;
+
+	str_to_key(key, key2);
+
+	for (i = 0; i < 64; i++) {
+		inb[i] = (in[i / 8] & (1 << (7 - (i % 8)))) ? 1 : 0;
+		keyb[i] = (key2[i / 8] & (1 << (7 - (i % 8)))) ? 1 : 0;
+		outb[i] = 0;
+	}
+
+	dohash(outb, inb, keyb, forw);
+
+	for (i = 0; i < 8; i++) {
+		out[i] = 0;
+	}
+
+	for (i = 0; i < 64; i++) {
+		if (outb[i])
+			out[i / 8] |= (1 << (7 - (i % 8)));
+	}
+	kfree(outb);
+}
+
+void
+E_P16(unsigned char *p14, unsigned char *p16)
+{
+	unsigned char sp8[8] =
+	    { 0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 };
+	smbhash(p16, sp8, p14, 1);
+	smbhash(p16 + 8, sp8, p14 + 7, 1);
+}
+
+void
+E_P24(unsigned char *p21, unsigned char *c8, unsigned char *p24)
+{
+	smbhash(p24, c8, p21, 1);
+	smbhash(p24 + 8, c8, p21 + 7, 1);
+	smbhash(p24 + 16, c8, p21 + 14, 1);
+}
+
+void
+D_P16(unsigned char *p14, unsigned char *in, unsigned char *out)
+{
+	smbhash(out, in, p14, 0);
+	smbhash(out + 8, in + 8, p14 + 7, 0);
+}
+
+void
+E_old_pw_hash(unsigned char *p14, unsigned char *in, unsigned char *out)
+{
+	smbhash(out, in, p14, 1);
+	smbhash(out + 8, in + 8, p14 + 7, 1);
+}
+#if 0
+/* these routines are currently unneeded, but may be
+	needed later */
+void
+cred_hash1(unsigned char *out, unsigned char *in, unsigned char *key)
+{
+	unsigned char buf[8];
+
+	smbhash(buf, in, key, 1);
+	smbhash(out, buf, key + 9, 1);
+}
+
+void
+cred_hash2(unsigned char *out, unsigned char *in, unsigned char *key)
+{
+	unsigned char buf[8];
+	static unsigned char key2[8];
+
+	smbhash(buf, in, key, 1);
+	key2[0] = key[7];
+	smbhash(out, buf, key2, 1);
+}
+
+void
+cred_hash3(unsigned char *out, unsigned char *in, unsigned char *key, int forw)
+{
+	static unsigned char key2[8];
+
+	smbhash(out, in, key, forw);
+	key2[0] = key[7];
+	smbhash(out + 8, in + 8, key2, forw);
+}
+#endif /* unneeded routines */